For the beef and jus
01 -
3 lb (1.4 kg) beef chuck roast
02 -
2 teaspoons kosher salt, plus more to taste
03 -
1 teaspoon black pepper
04 -
2 tablespoons vegetable oil
05 -
1 large yellow onion, thinly sliced
06 -
4 cloves garlic, smashed
07 -
1 tablespoon tomato paste
08 -
4 cups (950 ml) low-sodium beef stock
09 -
2 sprigs fresh thyme
10 -
2 bay leaves
For serving
11 -
6 sturdy French rolls, split
12 -
Spicy mustard, for serving
13 -
6 slices provolone or Swiss cheese, optional